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A manager at an engineering college in Wellesley Massachusetts was assigned the task of implementing energy savings initiatives throughout the campus. He contacted Industrial Controls for assistance optimizing his boiler room. Industrial Controls surveyed the boiler room and found two recirculation pumps running continuously during the winter months with their balancing valves choked down over 50%.

Industrial Controls recommended energy rebates from the campus’s power supplier and suggested the appropriate VFD to meet the criteria of the program. Industrial Controls was able to project energy savings using a savings calculator. Armed with a full plan for energy savings and financing, the college installed the new VFD’s, opened the balancing valves all the way and adjusted the motor speed down to 35HZ (just about half the speed at which they running before). Between the energy rebate and the slowing of the motors, payback was in months, not years.

energy savings analysis report

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